All this technology involved, not to mention the top secret stuff our government is no doubt using to assist in the search... how have we not found this missing plane yet? It's not a person or a car - it's a JUMBO JET. Even if it dove straight into the ocean some debris should have floated up to the surface by now, if not long ago.
Either the technology just isn't as good as we all think it is (doubt that) or something shady is going on and the truth is being hidden from us (far more likely). Could one government (or several) be engaging in a cover up of some sort?
I hate to get all tinfoil hat about all this, but I find it hard to believe that in this day and age of every phone call, email and internet search being archived and pored over by security analysts around the globe that no one knows where the hell this gigantic aircraft is. Someone's covering this up for some reason - they have to be.